linux-kernel - Re: [PATCH 1/3] misc: Add crossbar driver

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Date:	Fri, 23 Aug 2013 10:17:34 +0530
From:	Rajendra Nayak <rnayak@...com>
To:	Sricharan R <r.sricharan@...com>
CC:	Linus Walleij <linus.walleij@...aro.org>,
	Santosh Shilimkar <santosh.shilimkar@...com>,
	Tony Lindgren <tony@...mide.com>, Nishanth Menon <nm@...com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree-discuss@...ts.ozlabs.org" 
	<devicetree-discuss@...ts.ozlabs.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Linux-OMAP <linux-omap@...r.kernel.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Felipe Balbi <balbi@...com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Grant Likely <grant.likely@...retlab.ca>
Subject: Re: [PATCH 1/3] misc: Add crossbar driver

On Thursday 22 August 2013 05:03 PM, Sricharan R wrote:
>  maps crossbar number<->  to interrupt number and
>  calls request_irq(int_no, crossbar_handler,..)

So will this mapping happen based on some data passed from DT or
just based on whats available when the device does a request_irq()?

If its based on whats available then I see an issue when you need
to remap something thats already mapped by default (and not used)
since you run out of all free ones.
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